A Sampling of Wiki Software

Public Wikis: no access control

Blu Wiki: http://www.bluwiki.com

*is free, high risk for vandalism

Wikia: http:www.wikia.com

*must create an account to open

Protected

Editthis: http://editthis.info

*is free, with level option for add ons
*offers a choice to designate a sign on password

Google Site (formerly JotSpot): http://sites.google.com

*free
*wiki creator has control over changes
*option to identify wikis as adults only content

PBWorks: http://pbworks.com

*free and subscription options
*pay version can offer protected content
*used by the University of Chicago

Wikia: http://wikia.com

*Free
*can limit the number and identification of editors

WikiSpaces: http://www.wikispaces.com

*free or upgraded pay versions
*offers single or multiple editors

WikiSpot: http://wikispot.org

*Free to non-profits only

Private Wiki/Encrypted:

EditMe: http://editme.com

*SSL encrypted
*used by companies such as Cha Cha, WWF and Fujifilm
*$ ranges from $19.00 monthly for 2 users, 1GB to $149.00 monthly for unlimited users and 100 GB

Private Wiki/Protected When Firewall Present

Twiki: http://www.twiki.org